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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 235257Generated: October 27, 2026

O-Phenylenediamine → HCID 178419356, compound

https://huagongshe.com/reaction/235257

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-PhenylenediamineHCID 7243—
Reactant4-BromoisatinHCID 4500012—
SolventAcetic AcidHCID 176—
ProductHCID 178419356HCID 178419356—

Reaction Steps

A solution of 3.40 g (15.0 mmol) of 4-bromoisatin and 1.63 g (1 eq.) of 1,2-phenylenediamine in 50 ml of acetic acid was refluxed for 2 hours. The reaction solution was allowed to stand at room temperature for 16 hours, and the resulting precipitate was collected by filtration to give 10-bromoindolo[2,3-b]quinoxaline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05597921
Source datasetuspto-grants-1997_01
ORD IDord-1b3466bce9cb4e548459e6c9801d9477
Source noteuspto-grants-1997_01